A photoelectric conversion device according to an embodiment of the present invention includes an electrode layer, a first semiconductor layer, a second semiconductor layer, and an intermediate layer. The first semiconductor layer is located over the electrode layer. The first semiconductor layer has p-type or i-type conductivity and includes primarily a chalcopyrite-type compound or a perovskite-type compound. The second semiconductor layer has n-type conductivity and located over the first semiconductor layer. The intermediate layer is located at an interface between the electrode layer and the first semiconductor layer. The intermediate layer includes primarily a semiconductor having p-type conductivity and having a crystal structure different from a crystal structure of the first semiconductor layer. The intermediate layer has a carrier concentration greater than a carrier concentration of the first semiconductor layer.

A photoelectric conversion device includes a photoelectric conversion layer, and an electron transport layer. The electron transport layer includes metal oxide particles. In response to performing an X-ray photoelectron spectroscopy (XPS) analysis on the electron transport layer, two peaks representing Is orbitals of oxygen atoms are detected. A formula Y/(X+Y)?0.5 is satisfied, where a peak area of a peak on a low-energy side among the two peaks is X and a peak area of a peak on a high-energy side among the two peaks is Y.

A photoelectric conversion device includes a photoelectric conversion layer, and an electron transport layer. The electron transport layer includes metal oxide particles. In response to performing an X-ray photoelectron spectroscopy (XPS) analysis on the electron transport layer, two peaks representing Is orbitals of oxygen atoms are detected. A formula Y/(X+Y)?0.5 is satisfied, where a peak area of a peak on a low-energy side among the two peaks is X and a peak area of a peak on a high-energy side among the two peaks is Y.

A stacked cell and preparation method thereof. The stacked cell includes: a crystalline silicon cell; a conductive connecting layer located on a surface of the crystalline silicon cell; a first isolation layer extending from a surface of the conductive connecting layer facing away from the crystalline silicon cell to penetrate through the conductive connecting layer, and a perovskite cell located on the surface of the conductive connecting layer facing away from the crystalline silicon cell.

A stacked cell and preparation method thereof. The stacked cell includes: a crystalline silicon cell; a conductive connecting layer located on a surface of the crystalline silicon cell; a first isolation layer extending from a surface of the conductive connecting layer facing away from the crystalline silicon cell to penetrate through the conductive connecting layer, and a perovskite cell located on the surface of the conductive connecting layer facing away from the crystalline silicon cell.

A photoelectric conversion device of an embodiment includes: a first photoelectric conversion part including a first transparent electrode, a first organic active layer, and a first counter electrode; and a second photoelectric conversion part including a second transparent electrode, a second organic active layer, and a second counter electrode, which are provided on a transparent substrate. A conductive layer is formed on a partial region, of the second transparent electrode, which is adjacent to the first transparent electrode. The first counter electrode and the second transparent electrode are electrically connected by a connection part including a groove formed from a surface of the second organic active layer to reach an inside of the conductive layer and a part of the first counter electrode filled in the groove.

An organic photovoltaic (OPV) element that extends in a longitudinal direction and contains a plurality of modules, each of which includes a number of serially connected cells. A periodic succession of a number of the modules defines a pattern having at least a threefold rotational symmetry. Preferably, the basic shape of the modules is triangular, and the combined modules form a hexagonal superstructure.

A photoelectric conversion device of an embodiment includes: a first photoelectric conversion part including a first transparent electrode, a first organic active layer, and a first counter electrode; and a second photoelectric conversion part including a second transparent electrode, a second organic active layer, and a second counter electrode, which are provided on a transparent substrate. A conductive layer is formed on a partial region, of the second transparent electrode, which is adjacent to the first transparent electrode. The first counter electrode and the second transparent electrode are electrically connected by a connection part including a groove formed from a surface of the second organic active layer to reach an inside of the conductive layer and a part of the first counter electrode filled in the groove.

A solar cell module includes a substrate, and first and second cells connected in series. The first and second cells each include a first electrode, a first semiconductor layer, a second semiconductor layer and a second electrode stacked in this order on the substrate. The first semiconductor layer contains an oxide of a first metal and includes first and second portions. A groove separates the second semiconductor layers of the first and second cells. The groove and the first portion entirely overlap each other in a plan view. The first portion contains a second metal different from the first metal. A ratio of a number of atoms of the second metal to a number of atoms of all metals in the first portion is grater than a ratio of a number of atoms of the second metal to a number of atoms of all metals in the second portion.

The present invention relates to a method for the production of a thin-film solar cell array in which a plurality of individual thin-film solar cells are applied on a substrate. The individual thin-film solar cells are thereby deposited one above the other in regions so that an overlapping region is produced from respectively one pair of two individual thin-film solar cells; in this region, a series connection of the two thin-film solar cells forming the pair is present. In addition, the thin-film solar cell array has a transition region in which the thin-film solar cell applied on the first solar cell is converted into a layer situated below.